Figure 63 Accelerometer
Magnetometer
3D magnetometer sensor (N1105) is connected to RAPU via two GENIOs ie Genio40 and Genio41 and I2C_0
bus. Power supply voltage is provided from VIO & VAUX1 output of EM ASIC. The magnetometer is used as a
city compass sensor. It detects the earth magnetic field density and composes bearing information for
navigation applications.
The magnetometer has the following features:
•
3-axis magnetometer device suitable for compass application
•
Built-in A to D converter for magnetometer data out
•
Self test function
•
I2C bus interface
•
Power modes: OFF mode, stand-by mode and active mode
•
DRDY function for measurement data ready
•
INT function to inform exceeding magnetic field strength threshold.
The operating temperature is -20°C to +85°C.
The operating supply voltages are:
•
Analogue supply +2.4V to +3.6V
•
Digital interface supply +1.70V to analogue supply voltage.
RM-596
System Module
Issue 2 COMPANY CONFIDENTIAL Page 6 – 27
Copyright © 2010 Nokia. All rights reserved.
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